Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Buletin Sumber Daya Geologi
Tatik Handayani
Pusat Sumber Daya Mineral Batubara dan Panas Bumi
Education Energy Engineering Environmental Science

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
MINERALOGI BIJIH DAN KORELASI ANTARA UNSUR Au DENGAN UNSUR Ag, Cu, Pb, DAN Zn PADA SAMPEL PARITAN UJI PIT X PT NUSA HALMAHERA MINERALS, KABUPATEN HALMAHERA UTARA, PROVINSI MALUKU UTARA: ORE MINERALOGY AND CORRELATION BETWEEN THE ELEMENT OF Au WITH ELEMENTS OF Ag, Cu, Pb, AND Zn IN TRENCH’S SAMPLE OF PIT X PT NUSA HALMAHERA MINERALS, NORTH HALMAHERA REGENCY, NORTH MALUKU PROVINCE Nurrezeki Amaliah Dulfi; Dharma Irwanda; Tatik Handayani; Suwahyadi
Buletin Sumber Daya Geologi Vol. 18 No. 2 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i2.416

Abstract

The identification of deposits and mineralogical characteristics of ores is necessary to assist further exploration development activities. Research in the Pit X test trench area was conducted to determine the type of epithermal deposits based on the deposite form, ore mineral texture, alteration, sulfide minerals, and gangue minerals that are dominantly found from the results of direct megascopic sample descriptions in the Pit X test trench area, mineragraphic analysis, and petrographic analysis. Deposite forms encountered are vein, stockwork, and dissemenited. Ore mineral textures encountered are banded, comb, dogteeth, moss, vuggy and massive. Alterations encountered are silicification and silica-clay. Sulfide minerals found are pyrite and sphalerite. Gangue minerals found are quartz, sericite, and hematite. Based on the results of the deposite form, ore mineral texture, alteration, sulfide minerals, and gangue minerals found, the Pit X test trench research area is included in the low sulfide epithermal deposit type at a depth of about 300-350 m below the surface, deposited above the boiling zone. In this study, additional data processing was carried out regarding the correlation between Au and Ag, Cu, Pb, and Zn using the results of their grade values to determine the relationship between Au and each of the other four elements. The correlation coefficient (R) was obtained between Au-Ag = 0.158429795, Au-Cu = 0.01, Au-Pb = 0.1923538, and Au-Zn = 0.0565685425. Based on these results, it shows that the correlation of Au with Ag, Cu, Pb, and Zn is very low which may be due to the presence of all samples from the same elevation
KARAKTERISTIK ENDAPAN BIJIH BESI LATERIT PADA BLOK BARAT DAN BLOK TIMUR PT SILO, KABUPATEN KOTABARU, KALIMANTAN SELATAN BERDASARKAN ANALISIS GEOKIMIA DAN MINERALOGI : CHARACTERISTICS OF LATERITE IRON ORE DEPOSIT IN WEST BLOCK AND EAST BLOCK OF PT SILO, KOTABARU DISTRICT, SOUTH KALIMANTAN BASED ON GEOCHEMICAL AND MINERALOGICAL ANALYSIS Ayumi Hana Putri Ramadhani; Andi Cahyadi; Tatik Handayani; Suwahyadi
Buletin Sumber Daya Geologi Vol. 18 No. 3 (2023): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v18i3.425

Abstract

This research was conducted to identify the characteristics of laterite deposits in the western and eastern blocks of Sebuku Island, Kotabaru Regency, South Kalimantan using field observation methods, and laboratory analysis including titration, XRF, XRD and petrography analysis. The characteristics of the western block laterite deposits are 10 meters until 15 meters deep. The red limonite zone has Fe content of 51.25% with a mineral composition of hematite, magnetite, goethite, ilmenite, spinel. The yellow limonite zone has Fe content of 50.1% with a mineral composition of goethite, hematite, gibsite, ilmenite. The saprolite zone has Fe content of 16.2%, the mineral composition is hematite, chrysotile, goethite, garnet, diopside. The characteristics of the eastern block laterite deposits are that they have a depth of 6 meters until 7.5 meters. The red limonite zone has Fe content of 47.38% with a mineral composition of hematite, goethite, ilmenite, spinel. The yellow limonite zone has Fe content of 38.70% with a mineral composition of goethite, hematite, chromite, gibbsite, spinel. The saprolite zone has Fe content of 15.08%, the mineral composition is hematite, goethite, diopside, fayalite. The bedrock of the research area is in the form of periodotite, namely dunite and harzburgite which have been serpentinized. The mineral composition of the bedrock is olivine, pyroxene, opaque minerals and several secondary minerals, namely serpentine and talc. The west block bedrock has Fe content of around 7.73 % until 8.03% while the east block bedrock has Fe content of around 6.59 % until 7.49%.
Co-Authors Andi Cahyadi Ayumi Hana Putri Ramadhani Dharma Irwanda Nurrezeki Amaliah Dulfi Suwahyadi